Zobrazeno 1 - 10
of 393
pro vyhledávání: '"Philipsen, O."'
Autor:
Cuteri, F., Goswami, J., Karsch, F., Lahiri, Anirban, Neumann, M., Philipsen, O., Schmidt, Christian, Sciarra, A.
We discuss the interplay between chiral and center sector phase transitions that occur in QCD with an imaginary quark chemical potential $\mu=i(2n+1) \pi T/3$. Based on a finite size scaling analysis in (2+1)-flavor QCD using HISQ fermions with a phy
Externí odkaz:
http://arxiv.org/abs/2205.12707
Autor:
Vovchenko, V., Steinheimer, J., Philipsen, O., Pasztor, A., Fodor, Z., Katz, S. D., Stoecker, H.
The QCD equation of state at finite baryon density is studied in the framework of a Cluster Expansion Model (CEM), which is based on the fugacity expansion of the net baryon density. The CEM uses the two leading Fourier coefficients, obtained from la
Externí odkaz:
http://arxiv.org/abs/1807.06472
Autor:
Vovchenko, V., Steinheimer, J., Philipsen, O., Pásztor, A., Fodor, Z., Katz, S.D., Stoecker, H.
Publikováno v:
In Nuclear Physics, Section A February 2019 982:859-862
Perturbation theory for non-Abelian gauge theories at finite temperature is plagued by infrared divergences caused by magnetic soft modes $\sim g^2T$, which correspond to the fields of a 3d Yang-Mills theory. We revisit a gauge invariant resummation
Externí odkaz:
http://arxiv.org/abs/1203.6538
Autor:
Burger, F., Ilgenfritz, E. -M., Kirchner, M., Lombardo, M. P., Muller-Preussker, M., Philipsen, O., Pinke, C., Urbach, C., Zeidlewicz, L.
Publikováno v:
Phys. Rev. D 87, 074508 (2013)
We investigate the thermal QCD transition with two flavors of maximally twisted mass fermions for a set of pion masses, 300 MeV \textless $m_\pi$ \textless 500 MeV, and lattice spacings $a$ \textless 0.09 fm. We determine the pseudo-critical temperat
Externí odkaz:
http://arxiv.org/abs/1102.4530
Autor:
Muller-Preussker, M., Ilgenfritz, E. -M., Jansen, K., Lombardo, M. P., Philipsen, O., Zeidlewicz, L., Kirchner, M., Petschlies, M., Schulze, D., Urbach, C.
Publikováno v:
PoS LAT2009:266,2009
In this talk we give an overview of the 3D phase diagram of two-flavour non-zero temperature lattice QCD with twisted-mass Wilson fermions and a tree-level Symanzik-improved gauge action. We present a first feasibility study at maximal twist and, for
Externí odkaz:
http://arxiv.org/abs/0912.0919
Autor:
Philipsen, O., Tassler, M.
We reconsider a plasma with an anisotropy imposed on the momentum distribution of the system and study the real time static potential for quarkonia. The distribution function is normalised so as to preserve the particle number in an ideal gas, as req
Externí odkaz:
http://arxiv.org/abs/0908.1746
Autor:
Ilgenfritz, E. -M., Jansen, K., Lombardo, M. P., Müller-Preußker, M., Petschlies, M., Philipsen, O., Zeidlewicz, L.
Publikováno v:
Phys.Rev.D80:094502,2009
We present numerical results for the phase diagram of lattice QCD at finite temperature in the formulation with twisted mass Wilson fermions and a tree-level Symanzik-improved gauge action. Our simulations are performed on lattices with temporal exte
Externí odkaz:
http://arxiv.org/abs/0905.3112
Autor:
Ilgenfritz, E. -M., Jansen, K., Lombardo, M. P., Müller-Preussker, M., Petschlies, M., Philipsen, O., Zeidlewicz, L.
Publikováno v:
PoS LATTICE2008:206,2008
We report progress in our exploration of the finite-temperature phase structure of two-flavour lattice QCD with twisted-mass Wilson fermions and a tree-level Symanzik-improved gauge action for a temporal lattice size N_{\tau}=8. Extending our investi
Externí odkaz:
http://arxiv.org/abs/0809.5228
Autor:
Ilgenfritz, E. -M., Müller-Preußker, M., Petschlies, M., Jansen, K., Lombardo, M. P., Philipsen, O., Zeidlewicz, L., Sternbeck, A.
Publikováno v:
PoSLAT2007:238,2007
We discuss the use of Wilson fermions with twisted mass for simulations of QCD thermodynamics. As a prerequisite for a future analysis of the finite-temperature transition making use of automatic O(a) improvement, we investigate the phase structure i
Externí odkaz:
http://arxiv.org/abs/0710.0569